Paying per view is new for xvideo, originally they were only paying out for ad rev. My guess is they new ppv will be run something like pornhub which pays out pennies per view. I personally make more on pornhub than x video but that could change with the new changes xvideo are implementing... only time will tell. As far as using this for sole income- like anything else there are the 1% that is able to live off of that income but for most its just passive way to make a little extra money each month.